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kaheart [24]
3 years ago
15

Please help me! if correct will mark brainliest

Mathematics
2 answers:
9966 [12]3 years ago
4 0
Yea what he said ^ 17.4
Wewaii [24]3 years ago
3 0

Answer:

17.5

Step-by-step explanation:

formula:

y=k(x)

direct variation^^^

y=7, x=2

substitute it in the formula

7=(k)2 or 7=2k

7/2 or 3.5= k, k is the constant

now substitute k to the problem

y=5k

y=5(3.5)

y=17.5

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Answer:

on Tuesday, her account balance being less than -$24 means her debt will be bigger than $24 dollars.

Step-by-step explanation:

  • On Monday, allie's bank account balance was -$24.
  • Balance being negative means he is carrying a debt of $24.
  • Of course it must have happened when she must not have enough money in his bank account to meet expenses and transactions.

On Tuesday, Allie's balance account was less than it was on Monday. It means

  • Her bank account < -$24
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Therefore, on Tuesday, her account balance being less than -$24 means her debt will be bigger than $24 dollars.

Keywords: account balance, absolute value

Learn more about account balance and absolute value from brainly.com/question/10765808

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PLEASE HELP!!!!! What is the value of x in the matrix equation below?
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The given matrix equation is,

1.5\left[\begin{array}{cc}x&6\\8&4\end{array}\right] +y\left[\begin{array}{cc}1&4\\3&2\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right].

Multiplying the matrices with the scalars, the given equation becomes,

\left[\begin{array}{cc}1.5x&9\\12&6\end{array}\right] +\left[\begin{array}{cc}y&4y\\3y&2y\end{array}\right] =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Adding the matrices,

\left[\begin{array}{cc}1.5x+y&9+4y\\12+3y&6+2y\end{array}\right]  =\left[\begin{array}{cc}z&z\\6z&2\end{array}\right]  \\

Matrix equality gives,

1.5x+y=z\\ 9+4y=z\\ 12+3y=6z\\ 6+2y=2

Solving the equations together,

y=-2\\ 3y-1.5x=9\\ -1.5x=9+6\\ x=-10

We can see that the equations are not consistent.

There is no solution.

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Answer:

Step-by-step explanation:

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